Thank you, I have been practicing on changing the tubes without the tyre liner and it is a pain (bc of the type of tyre I have), but I am realizing it is a part of road biking. This is why over kill provably is ok I thought, unless it does not really help and will only distroy the tyre. I will surely realize what you mean about being heavier and slow soon enough when I have put in more mileage, at least I am not as woried about destroying the tyre.